Analysis of the Influence Factors of Adolescents' Physical Activity Based on the Perspective of Social Cognitive Theory

  Objective  The researches on the influencing factors of adolescents' physical activity were summarized using the method of meta-analysis systematically from the perspective of Social Cognitive Theory (SCT).

  Methods  Literature review was conducted from different databases and 18 documents were introduced; meta-analysis and subgroup analysis were used by Stata 15.0.

  Results  ① SCT model can explain the behavior of physical activity to a moderate extent(R²=17%, P < 0.01, z=7.2);②The results of literature which included the factors of barrier self-efficacy, social support and social status showed that these factors correlated with physical activity significantly; ③There exists heterogeneity between studies influenced by different geographic, gender, and statistical methods.

  Methods  SCT model can predict physical activity of adolescents moderately; selfefficacy, barrier self-efficacy, social support, and social status are the key variables to predict physical activity; the predict of SCT model to adolescents'physical activity are different in terms of the region, gender and cultural environment of different countries.